S100 Master Duino Leonardo

master duino leonardo mcu 

Few units in stock


The Duino Leonardo module is a certified Rhomb.io Module that contains an ATmega32U4 microcontroller, the IC in which the popular Arduino/Genuino Leonardo board is based. This IC is a low-power CMOS 8-bit microcontroller based on RISC architecture.

The module allows to program the microcontroller by using the Arduino IDE as it were a genuine Arduino/Genuino Leonardo board. This gives to the user the capability to export easily a project originally made for the Arduino platform and transform it in a modular, tiny, and powerful professional product.

The Duino Leonardo module can work as a typical Rhomb.io Slave Module, or as a Master Module when is used with any Rhomb.io PCB Class 2.


  • Industrial automation
  • Internet of Things
  • Human Interface Device

Module specification

As it has been mentioned above, the Duino Leonardo module contains an ATmega32U4 microcontroller. This 8-bit RISC machine has 26 digital input/output pins (12 of them can be used as 8-bit PWM outputs), 6 analog inputs, 1 UART and a 16 MHz quartz crystal.

The module is ready to use with the Arduino IDE. That is possible because a bootloader has been installed on the ATmega32U4 and the module includes also a USB port. Then, the user only has to plug the Duino Leonardo module on the master socket that will be found on the Rhomb.io Class 2 PCB and connect the USB to a computer.

Duino Leonardo Master Module features
Microcontroller ATmega32U4
Operating voltage 2.7-5.5V
Crystal Resonator 16MHz
Interrupt Pins 1
PWM Outputs 1
ADC pins 1

Docs & Resources